# item.guide
Side-by-Side Comparison Jack Connectors

RCA vs. XLR 5-Pin

Comparing 2 standards across 9 specifications. 9 key differences identified.

Comparing:
RCA
XLR 5-Pin

The RCA connector, introduced by RCA Corporation around 1937, is a de facto industry-standard connector for consumer audio and composite video -- there is no formal mechanical specification for the connector itself, though the composite video signal it typically carries targets a nominal 75-ohm impedance.

View full RCA spec sheet →

5-pin XLR is the standard connector for DMX512 digital lighting control -- though 3-pin XLR is commonly, and per the DMX512 spec itself non-compliantly, substituted in practice. 5-pin XLR is also used for some stereo microphones and modular professional audio equipment.

View full XLR 5-Pin spec sheet →

Specification Comparison Table

9 Parameters
Parameter / Spec
Connector Family
Coaxial Phono Connector Circular Stage & Lighting Interconnect (XLR5)
Conductors / Contacts
2 (Center Pin, Outer Shield Ring) 5 Pins
Signal Format
Unbalanced Line-Level Audio / Composite Video / S/PDIF DMX512 Digital Lighting Control / Dual-Element Audio
Primary Applications
Home theater receivers, DJ turntables/mixers, composite/component video, S/PDIF digital Stage lighting consoles, moving head fixtures, dimmers, dual-channel stereo microphones
Outer Shell / Contact Diameter
8.3–8.5 mm (Outer) | 3.175 mm (Center Pin)
Standard Pinout
Center Pin: Positive Signal (+) | Outer Ring: Ground / Shield (-)
Characteristic Impedance
75 Ω (Video / S/PDIF) | ~50 Ω (Audio)
DMX512 Pinout
Pin 1: Shield | Pin 2: Data 1(-) | Pin 3: Data 1(+) | Pin 4: Data 2(-) | Pin 5: Data 2(+)
Governing Standard
ANSI E1.11 / USITT DMX512-A